Control Devices NRH271 and NRH272 rotary position sensors

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The NRH271 and NRH272 family of no-contact, rotary position sensors offers the optimal combination of performance, safety and cost. All variants utilise Hall-effect sensing technology and are accommodated in a low-profile housing with a compact footprint.

The electrical output span can be set to correspond to rotations of 20° to 360°, and the positional information is determined by the angle of the supplied magnet relative to the sensor body. The maximum air gap between magnet and sensor is 7 mm. The magnet can be supplied in a carrier, bolt, plug or loose.

Power supply options are regulated 5 V or 9-30 V. The NRH271 is single output and the NRH272 has a second redundant output. The NRH272 contains two independent measuring circuits, each with its own power supply, for safety-critical applications. Both models contain onboard diagnostic functions that mean the outputs can be put into safe, predefined states should an internal sensor error be detected. Various connection options are available with industry-standard connections or flying leads.

A fully encapsulated design offers high resistance to water and dust, shock, vibration and temperature, meaning the sensor is suitable for use in hostile and vehicle environments.